Hill: Penobscot Plants. 273 



HiEEACiUM AURANTiACUM L. Comiiion ill fields and 

 pastures. 



HiERACiuM PRATE:srsE Tauscli. Very common. Fields and 



roadsides. 

 HiERACiuM scABRUM Miclix. Freqneiit in dry woods and 



clearings. 

 HiERACiu:*! CAiVADENSE Miclix. Commoii ill thickets at 



edge of woods and in clearings and fields. 



Summary of the Floka 



Species Varieties Forms Total 



015 120 12 747 



Species Varieties Forms Total 



Native Plants 495 107 10 612 



Introduced Plants 120 13 2 135 



PHYTOGEOGRAPHICAL ASPECTS OF THE FLORA 

 THE DISTPJBUTIOX OF THE NATIVE FLORA 



An examination of the ranges of the 612 native plants of 

 the eastern Penobscot Bay region shows that the flora falls 

 more or less readily into six groups : 



Group I. Widespread Plants, occurring through- 

 out eastern jSTorth America. 



